Akai 21CTU93BC Service Manual Page 23

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LA9302A/8177/LA78041/LA78040 Function : vertical output
Symbol PIN Function Symbol PIN Function
INV IN 1 Input V OUT 5 Vertical output
VCC1 2 Power VCC2 6 Output power supply
PUMP UP 3 Pump up power NON INV IN 7 Negative feedback
dnuorG 4 DNG
Test point Waveforms
TDA8177 / ST9302/ LA78040 or LA78041
PIN 1 2 3 4 5 6 7
V 0.7 15 -12 -15 0.3 15.9 -0.07
V451 C
5Vpp 0.9Vpp
1000Vpp
1.3Vpp
H
H
1Vpp
V
H
H
CRT KB
CRT KG CRT KR
95Vpp
95Vpp 95Vpp
H
H
H
T511 PIN7 HEATER
300Vpp 22Vpp
H
H
V451 B
2.7Vpp
TDA11105 PIN45
2.5Vpp
2.5Vpp 3.8Vpp
H
H
H
TDA11105 PIN44 TDA11105 PIN46
TDA11105 PIN56
TDA11105 PIN57
0.8Vpp
V
TDA11105 PIN14
TDA11105 PIN15
TDA11105 PIN24
1.2Vpp
2.6Vpp
H
H
TDA11105 PIN52
TDA11105 PIN1
22
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